| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Stop Telling. Start Leading! The Art of Managing People by Asking Questions | Hardcover | 978-0-9774056-0-2 (0-9774056-0-5) | 2005 |
| Stop Telling. Start Leading! The Art of Managing People by Asking Questions | Paperback | 978-0-9774056-1-9 (0-9774056-1-3) | 2005 |